Battery-grid.



"9"' Patented May 28,1%

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'UNITED STATES PATENT OFFICE.

CLARENCE H. CABLE, or TOPEKA, KANSAS, AND ELMR w. JONES, oF KANSAS CITY, Missoenl.

BATTERY- GRID.

Application filed June 25, 1917.

To all who/rt t may concern.' y

Be it known that we, (Wtimnvcic ll. CABLE, a citizen of the United States, residing at Topeka, in the county of Shawnee and State of Kansas, and Emu-:u W. Jours, a citizen of the United States, residing at Kansas City, in the county of Jackson and State of Missouri, have invented certain new and useful lmprovcnlentsl in Battery-Grids, of which the following is a specification.

Our invention relates to improvements in grids for secondary or storage batteries, and one object is the provision of a grid or support for the active material, ot such strength and construction as to withstand the excessive vibration to which batteries are subjected when in use on automobiles.

A further object is to maintain low internal resistance and high conductivity after long continued service and in all Condit ions of electric charge. l'Vith long use the active materials of a storage battery plate tend to waste or fall away from the surface supports, which, in theordinary type of grid construction, leaves the interior portion in poor electrical contact with the conducting frame work. Also when a battery is discharging the active material shrinks or contracts, pulling away from the frame Work and resulting in poor electrical contact and consequent high internal resistance, all of which we seek to overcome in our present grid.

Another object of our invention is the provision of an adequate support for the active material, such for instance, as lead oxid paste, which has been molded into the grid. This object is attained by so disposing the supporting members of the grid, as to bind and hold the active material in place and prevent its falling away, said supporting members, also, being disposed so as to reinforce the gridagainst buckling and cracking which loosen the oxid, and we thereby provide a grid combining in a high degree the elements of light Weight, long life, and efficiency of service.

In connection with the above, is the re quiremelit that the' electrical resistance shall be relatively low, so that heating eli'ects during discharge are largely eliminated, yet maintaining the maximum amount of metal in the body of the grid, to secure the highest etliciency within the cell. In View of the Specication of Letters Patent.

Patented May 28, 1918.

Serial No. 176,748.

foregoing requirements, our experiments have been conducted'in an endeavor to obtain the proper design of the metal frame of the grid, which for commercial reasons, must he kept within certain requirements, as to size and weight. is one of importance in view of the extensive use of storage batteries on automobiles.

ln carrying ont the invention we attain the objects sought by providing a grid embodying vertical partition members, horizontal grating members intersectin said partition members, a series of diagona inembers ruiming obliquely through and across the grid in. such manner as to strengthen and support the same against the forces that tend to buckle, warp and break it, and a rechmgnlin frame surrounding all of the foregoing elements.

The diagonal members intersect the ver tical at various points, as shown in the accom-- panying drawings, and tie the Whole structure together in truss formation capable 0f resisting strains in all directions to which the grid is subjected in the course ofmanu- B0 in our judgment, withstand shock and vi- 90 bration, heavy discharge, high temperature, and extreme sulfzition, better than the types of which we are now aware. Such batteryplate will also, through freedom from twisting, cracking, and "icurling at the corners, '95

eliminate short circuits iu the battery jar or cell due to punctut'ed separators, and obviatev the internal piiessure that fractures rubber jars, with consequent loss of electrolyte and damage to the battery.

ln the further description of our inven-E tion which follows, reference is made to the accompanying drawings,\ forming a part hereof, and in which: i

Figure l is a side elevat`bn of a grid con- 105 structcd in accordance with our invention,

as it comes from the mold `before the oxid is placed therein.

This latter consideration 60 and horizontal members and each other approxi- Fig. 2 is an enlar ed, broken sectional view on the line II of ig. 1.

Fig. 3 is a fra entary view of the grid after it has bee led with the active material.

Fig. 4 is a fragmentar horizontal section of the grid on line IV of ig. 1.

Fig. 5 is a fragmentary, modified formof the grid.

Referring now in detail to the various. l pleads, 1 designates the rectangular inclosmg `members 2 and the horizontal members 3 and 4, and are substantially rectangular in cross section.

The vertical partition members 2 are also,

approximately, rectangular in cross section,

11e thehorizontal grating members 3 and 4, are of triangular cross sectional configuration, converging either invi'ardl?1 or outwardly, but preferably, inwardy as disclosed by Fig. 2.

Considering now the grid as a whole, it

will be seen on reference to Eig. 2, that the' horizontal members 3 are arranged adjacent to one face of the frame 1, while the horizontal members 4 are arranged adjacent to the opposite face of said frame. The diagonal members 5 extend obliquely in one direction across the grid from one face thereof to the other and intersect the members 3 and 4 at various points, while the diagonal members 6, extend in an op osite direction ob- 1i uely across said grid om one face thereo? to the other and intersect. the members 3,

4 and 5, at various points, thus reliably bracing the grid against lateral as well as other stresse The diagonal members 5 and 6 reinforce each other at their points of intersection 10 land tie the whole structure together in a truss formation'capable of resisting strains in all directions. Said diagonal members also v rovide increased surface and support for t e active material 12, and constitute conductors in the interior of the 'id to which the oxid adheres after the sur ace has wasted away from long use and upon which said oxd firmly contracts as the battery discharges.

The finished battery plate may be cut along any vertical or horizontal member cast therein, without sacrifice of strength and the diagona mem ers.

rigidity, and by the use of several connect ing terminals cast inte ral with the grid at proper points, plates o any standard size or shape may be cut from a single stock pattern, eliminating the trouble and expense incident `to a complete supply of the numerousptype's of lates in common use. This feature simpli es the roblems of manufacture .reduces the stocE and selling expense of, the distributer, and enables the repairman to make immediate renewals without orderjin 'special parts.

d n the modified form disclosed by Fig. 5, l designates the rectangular frame of the grid, 2" the vertical members, 3a and 4 the horizontal ratin members, and 5 and 6 This form is similar to the preferred form disclosed b Figs. 1 to 4, inclusive, excepting that eac series of diagonal members 5a are in more staggered relation to each other, instead of being, approximately, in alinement as in the preferred form. The foregoing also applies to the diagonal members 6,

It is not desired to limit the exact construction of this battery grid to the precise details as described above, as sundry alterations may be made without varying from the essential features as outlined in the appended claims.

Having thus described our invention, what We claim and desire to secure by Letters Patent, is:

1. In a grid for a secondary battery, a rectangular frame, diagonal members `extending obliquely across said frame from ,one face to the other, and other diagonal members extending obliquely across the drame from one face to the other in a direction opposite to the first-mentioned dia onal members, all of said diagonal members ing cast integral with each other at their points of intersection and integral with the rectangular frame where they join the same.

2. In a rid for a secondary battery, a rectangular rame, vertical members extending through said frame and cast integral therewith,diagonal members extending obliquely across said frame from one face to the other, and other diagonal members extending obliqu'ely across the frame from one face to the'other in a direction opposite to the firstmentioned diagonal members, all of said diagonal members being cast integral with each other at their points of intersection and integral with the rectangular frame and the vertical members where they join the same, substantially as shown and described.

3. In a grid for a secondary battery, a rectangular frame, horizontal members extending though said frame and cast integral therewith, diagonal members extending obliqucly across said frame from one face to the other and other diagonal members extending o liquely across the frame from one face to the other in an opposite direction to the first-mentioned diagonal members, all of said diagonal members being cast integral with each other at their points of intersection, and integral W'th the rectangular frame and the horizontal' members where they join the same. 'f -1 j 4. A grid for a secondary battery, consisting of a rectangular frame having an integral terminal, horizontal members uniformlyspaced and extending through said frame, vertical members uniformly spaced and extending through said frame, diagonal members extending obliquely across said frame from one face to the other, and other diagonal members extending obliquoly across the frame from one face to the other in a direction opposite to the first-mentioned diagonal members, all members of the grid being cast integra] with each other at their points of intersection and integral With the rectangular frame Where they join the same.

5. A grid for a secondary battery, consisting of a rectangular frame having a terminal, vertical members extending through said frame, horizontal members extending through the frame and dlsposed ad1acent to one face thereof, companion horizontal members extending through the frame and disposed at the opposite face thereof from the first horizontal members, diagonal members extending obllquely across said frame from one face to the other, and other diagonal members extending obliquely across the frame from one face to the other in a direction opposite to the first-mentioned diagonal members, all members of the grid being cast integral With each other at their points of intersection and integral with the rectangular frame where they join the same. CLARENCE H. CABLE. Witnesses:

Josizrn PALLUCH. WM. L. Howes.

ELMER W. JONES. Witnesses:

ALEXANDER D. SAPER, JAMES FAIRWEATIIER. 

